Chapter Summaries

Chen Si healed Yasuo, then faced a powerful artificial Titan that survived severe injuries. After observing its strength, Chen Si transformed into the Thunderbolt Titan and flew away with Yasuo, deliberately leaving the Titan to wreak havoc in the Mid-East.

• Chen Si transferred his life force to Yasuo and healed his shattered organs, then tossed him aside after noticing he had wet his trousers.
• Yasuo woke and mistook Chen Si for a dead god, prompting Chen Si to punch him and wonder whether Roald had captured Zoe.
• Evil titan No. 1 burst from the collapsing hospital and attacked Chen Si, who dodged while examining its unusual ability to survive a destroyed nape.
• Yasuo stabbed the Titan with a broken iron pipe and helped Chen Si evade its attacks, while Chen Si concluded it was an artificial pure Titan without a lifespan limit.
• Chen Si transformed into the Thunderbolt Titan, carried Yasuo onto his back, and chose to retreat so the Titan would weaken the Mid-East and complicate Willy Tybur's peace talks with Marley.

A Titan rampaged through a Mid-East town, provoking outrage and bringing Marley and the Mid-East close to war. Willy Tybur resolved the crisis through compensation and a treaty, while Marley’s leaders suspected the attack had involved their experimental Titan.

• Evil Titan No. 1 charged into a residential district, killing civilians and prompting Mid-East troops to fight it near the abandoned hospital.
• Cornell went to the Marleyan embassy as angry residents surrounded it, while Ambassador Abel sent urgent telegrams to Marley.
• Marshal Calvi prepared for a possible war, but the Tybur Family ordered the generals not to deploy and took charge of diplomacy.
• Magath suspected Roald and the experimental Titan were behind the attack, and he helped Adonis avoid professional ruin after Adonis criticized Roald.
• Willy Tybur traveled to New Lanka and offered 500,000 Marley Coins in compensation and an end to the additional 30 percent tariff.
• Willy Tybur, Gustav, and Ingram signed the Marley-Mid-East Non-Aggression Treaty on August 23, 852.

Zoe woke at the Research Department and told Mogwin that Doctor Charns, not Roald, had saved her in the Mid-East. Mogwin arranged for Zoe and Philia to move to Hizuru in six months, while Chen Si and Yasuo approached the Mogwin residence in disguise.

• Zoe awoke in Mogwin's office and learned that Roald had brought her back from the Mid-East.
• Zoe corrected Mogwin's belief that Roald had rescued her, describing how Doctor Charns treated her and helped her escape.
• Mogwin agreed to repay Doctor Charns and invited him to the family home, but Zoe said she did not know where he was and had promised to help him enter Marley.
• Mogwin told Zoe that he had agreed to assist the Marley Security Bureau's experiments in exchange for the family's freedom, and that he planned to send her and Philia to Hizuru in six months.
• Mogwin suffered a coughing fit, and Zoe left to find Philia, hoping Doctor Charns could cure him.
• Chen Si, disguised with a side-parted hairstyle, fake stubble, and glasses, walked with Yasuo near the Mogwin residence as Yasuo sneezed.

Chen Si disguised himself as Mr. Charns in Marley, befriended Falco, and followed him to Zoe’s home. There, Pieck recognized him, leaving her terrified by his presence.

• Chen Si found Zoe’s home in Marley’s Empire Avenue after searching for three days.
• Falco escorted Philia and Pieck through the wealthy district, then ran into Chen Si and Yasuo.
• Chen Si gave Falco a sausage infused with his lightning power so he could track Gabi when she ate it.
• Chen Si arrived at Zoe’s villa and encountered Pieck and Philia waiting outside.
• Philia greeted Yasuo and Chen Si, and Pieck realized the disguised man was Chen Si.

Chen Si pressured Pieck into staying quiet by threatening the thousands of people living on Main Avenue, then joined Zoe’s household as a guest. Zoe warmly invited Chen Si and Yasuo to stay with her, leaving Pieck alarmed and uncertain about Chen Si’s intentions.

• Philia told Pieck that her sister Zoe would return soon, while Pieck tried to find a way to alert Magath and evacuate the residents.
• Chen Si revealed that he knew Pieck was considering an evacuation and warned her that thousands of residents, including children, could be harmed if she acted against him.
• Pieck pretended to feel unwell and leaned into Chen Si’s arms, then hurried away when Zoe arrived with Philia.
• Zoe recognized Chen Si after he removed his fake stubble and invited him and Yasuo into her villa.
• Zoe offered to let Chen Si and Yasuo stay with her, leaving Pieck stunned by her friendliness toward him.

Roald discovered that Gabi carried energy connected to Chen Si and tricked her into consuming his blood, making her stronger and more fanatical. At the Mogwin Residence, Chen Si offered Pieck a choice: join Paradis Island or die.

• Chen Si accepted Zoe's invitation to dinner at the Mogwin Residence while Pieck grew anxious.
• Roald confronted Gabi and sensed energy within her that matched Chen Si's.
• Roald offered Gabi his blood, then flicked it onto his shoe; Gabi licked it up despite Falco's protests.
• Gabi declared she would become strong enough to slaughter everyone on Paradis Island and become Marley's strongest Titan, while Roald resolved to keep playing with Chen Si.
• Chen Si told Pieck that Zoe was an agent and gave her the choice to surrender and join Paradis Island or die.

Chen Si pressured Pieck to join the Eldia Empire rather than continue serving Marley, threatening to turn her into an idiot and kill those around them. Pieck agreed to cooperate by supplying a deployment map and helping him deceive Marley, and the chapter ended with someone ringing the villa doorbell.

• Chen Si rejected Pieck's apparent surrender and explained that he could destroy her mind if she resisted.
• Chen Si urged Pieck to join the Eldia Empire and claimed that Marley could not defeat him.
• Pieck offered information about the powerful Titan warrior Roald in exchange for Chen Si letting her go.
• Chen Si demanded that Pieck surrender before he killed Roald, and she agreed when he threatened to start killing.
• Pieck offered the World Joint Assembly deployment map and agreed to help Chen Si, on condition that he spared the Marley Warrior Unit and did not make them attack Marley.
• Zoe mistook Pieck's shout of agreement for excitement about spicy food, and the villa's doorbell rang.

Chen Si visited Professor Mogwin and tried to secure a chance to learn from him, but Mogwin’s physics books were beyond his knowledge. Chen Si arranged for Hange to become Mogwin’s assistant instead, then joined the household for dinner.

• Mogwin returned home and met Yasuo, Chen Si, and Pieck while Philia introduced Yasuo as her friend.
• Mogwin told Chen Si he could share some medical knowledge but could not mentor him long-term, and offered him books on physics.
• Chen Si realized he could not understand the physics books and suggested that his friend Hange was interested in the subject.
• Mogwin offered to take Hange on as his assistant, giving her access to advanced instruments and knowledge.
• Zoe served dinner, and Chen Si watched Yasuo eat messily while Philia ate neatly.

Chen Si impressed the Mogwin family by treating their invented ancestral remedy as a real formula and curing Mogwin’s consumption. Their gratitude made Chen Si briefly wonder if he wanted to leave the war behind, while Pieck worried that Zeke might already have surrendered.

• Charns told Chen Si that Mogwin had found most of the ingredients for the ancestral remedy, and Mogwin explained the substitutes and research he had arranged.
• Chen Si offered to cure Mogwin, but Mogwin refused at first, saying the Mogwin Family did not owe favors.
• Chen Si insisted he helped patients without expecting repayment, earning Mogwin’s admiration and leaving Pieck suspicious that Chen Si had brainwashed everyone around him.
• Pieck wondered whether Warrior Commander Zeke had surrendered after recalling his carefree attitude since Roald joined Marley's Warrior Unit.
• Chen Si used a silver needle and an electric arc to cure Mogwin’s consumption, and the Mogwin family thanked him warmly.
• As Philia kissed his cheek, Chen Si imagined leaving the war and wondered whether he could have a happy life after it ended.

Eren woke in a Marleyan hospital after Falco saved him and asked the boy to help him write letters to surviving comrades. Meanwhile, Chen Si agreed to travel with Zoe while waiting for Mogwin’s application news, and Erwin announced a new Survey Corps training program to prepare for a surprise attack on Marley.

• Eren woke in the hospital and recognized Falco, who had brought him there after finding him injured.
• A Marleyan nurse dismissed Eren as cannon fodder, and Eren said that hatred would disappear only when life did.
• Eren questioned Falco about becoming a Marleyan Warrior, then asked him to help write letters to comrades who survived the front lines.
• Chen Si agreed to travel with Zoe to investigate the bouquet in the Costalia Mountains while Mogwin sought approval for his research-facility application.
• At the Chang'an City branch, Erwin announced that Thunder Spears would enter mass production and divided the Survey Corps into rifle and assault companies.
• Erwin ordered three months of intensive training to select one hundred elite soldiers for an operation alongside the Titans and Marshal Chen Si.

The veterans and recruits prepared for the coming conflict while Chris looked back on a group photo of their comrades. On the way to a nearby city with Zoe, Chen Si sensed Falco at a hospital and became curious about why he was there.

• Levi assigned Jean to manage the recruits and told Sasha and Connie to focus on supervising them.
• Armin and Erwin discussed finding the location of Marley’s World Joint Assembly, and Erwin proposed sending Chris, Jean, and others to the island in two months.
• Chris and Mike looked at the group photo of twenty-one comrades and discussed what they might do after the war.
• Zoe drove Chen Si toward a city, stopped beside a hospital under the pretense of getting fuel, and went inside to ask for some.
• Chen Si sensed Divine Sense fluctuations, saw Falco enter the hospital, and decided to investigate.

Chen Si intervened when hospital staff and guards mistreated Mrs. Gus, whose newborn grandson Rubin was refused care because his father had deserted the Eldia Warrior Unit. Chen Si cured Rubin with a silver needle, but Zoe arrived before Falco could ask him to treat Eren, while Marley security officers approached.

• Chen Si spotted Eren and Falco outside the hospital and witnessed Director Troy refuse to admit Mrs. Gus's sick grandson because her son Jeff had deserted.
• Guards dragged Mrs. Gus away and Eldians grabbed her scattered savings, but Falco tried to stop them and Chen Si intervened by paying the guards to release her.
• Chen Si examined Rubin, learned he had influenza, and used a silver needle to wake and cure him as onlookers praised him.
• An injured soldier explained that Jeff had fled after disobeying a retreat order to save Ted, and Chen Si refused Mrs. Gus's offer of payment for treating Rubin.
• Falco began to ask Chen Si to help Eren, but Zoe arrived and Marley public security officers approached as the crowd watched Chen Si.

Chen Si treated patients at the Eldia Military Hospital but was stopped by Marley security and subjected to a blood test before leaving with Zoe. He secretly told Eren he had found a possible way to break the Titans’ lifespan limit, while Rundstedt reviewed a report about him.

• Patients crowded around Chen Si, asking him to treat their illnesses and injuries.
• Rud demanded Chen Si’s identification and a blood test, but Zoe supplied his papers and defended him from the security officer’s scrutiny.
• Chen Si passed the blood test, and Zoe warned Rud she would request an administrative review before leaving with him.
• Eren told Falco that Chen Si was a good person, then received Chen Si’s secret message about finding a way to break the Titans’ lifespan limit and bringing Hange to Marley.
• A hidden observer watched the hospital from across the street, while Rundstedt read a report identifying Chen Si as Zoe’s friend and a doctor from Hizuru.

Rundstedt inspected Mogwin’s Titan blood experiments and agreed to recruit willing Marleyan soldiers as test subjects. Mogwin requested that Paradis Chanes become his assistant, but Rundstedt ordered an investigation into the foreign doctor’s motives and left the chapter asking whether the report about him had been verified.

• Rundstedt visited Mogwin’s laboratory, where Roald’s blood was being injected into three subjects, and learned that volunteers had a better chance of surviving the Titan experiments.
• Rundstedt agreed to seek volunteers among Marley’s soldiers instead of forcing people into the experiments.
• Mogwin asked to hire Paradis Chanes as his assistant, and Rundstedt insisted on questioning him first because he was a foreigner.
• Mogwin confirmed that Paradis had cured his consumption, prompting Rundstedt to warn that he would eliminate him if he proved to be a spy.
• Bruce reported that Paradis was a doctor who had saved Poet’s life and treated patients for free, and Rundstedt asked whether the claims had been verified.

Rundstedt ordered Chen Si followed and threatened to kill him if the surveillance uncovered suspicious activity, while resolving to recruit him if he proved to be a genuine doctor. On the drive toward Saxony State, Chen Si questioned whether Eren’s future memories were being controlled or cut off, then shared a warm moment with Zoe.

• Bruce told Rundstedt that Chen Si had saved Jeff Gus’s infant without charge and that a blood test showed Chen Si was not Eldian.
• Rundstedt suspected Chen Si had another objective, ordered ten men to follow him and the Security Bureau to search every place he visited, and authorized his death if they found anything suspicious.
• Rundstedt said he would personally persuade Chen Si to become a Marley citizen if the surveillance found nothing suspicious, hoping the skilled doctor might also treat his worsening kidney disease.
• As Chen Si and Zoe drove toward a destination more than a thousand kilometers away, Chen Si wondered whether the Founder Eren had cut off memories to control the past.
• Zoe encouraged Chen Si to appreciate the scenery, and Chen Si complimented her before she turned back to the road with a shy smile.

Chen Si and Zoe stayed for dinner with Uncle Drew in Drape Town, where he spoke about his family’s losses in the war and the village’s fear of conscription. Chen Si was left thinking that he was destined to unleash another large-scale war despite knowing how many villagers would suffer.

• Chen Si and Zoe accepted Uncle Drew’s invitation to share dinner at his home in Drape Town.
• As they walked through the village, Chen Si found its peaceful scenery calming, while Zoe spoke wistfully about wanting to live as a butterfly.
• At Uncle Drew’s house, Chen Si noticed a family photograph as Zoe played with Uncle Drew’s grandson, Gavin.
• Uncle Drew told Chen Si and Zoe that his wife had died, both his sons had been killed in the war, and the village had lost nearly all its men to conscription.
• When Chen Si asked whether he wanted the war to continue, Uncle Drew broke down over his sons’ deaths and questioned what the war had accomplished.
• Chen Si thought of Armin's Grandfather and realized that he was destined to unleash a massive war, even though many villagers might die.

Zoe and Chen Si left Uncle Drew’s home and traveled through Marley, sharing a moment of peace in the countryside before reaching Zoe’s mother’s hometown, Annecy. The chapter ended as Zoe reunited with Grandma Rose and learned that her childhood friend Buz had been ill.

• Zoe refused Uncle Drew’s money, left him a thousand Marley Coins, and gave his child an electric fan; Chen Si cured Uncle Drew’s underlying illness before they departed.
• Zoe drove Chen Si across a grassland, where they admired the scenery and spoke about travel and the meaning of life.
• Zoe and Chen Si arrived in Annecy, her mother’s hometown, and she eagerly ran into town with him.
• Zoe reunited with Grandma Rose, who told her she had missed Zoe’s visit two years earlier while seeking treatment for Buz.
• Zoe asked Grandma Rose what had happened to Buz, her childhood friend.

Chen Si cured Buz of his apparent dementia, then joined Zoe at Lake Bourget, where they shared a quiet conversation about the lake’s solitary island and the dandelions along its shore. Zoe and Chen Si promised to return the following September with Philia and Yasuo, though Chen Si wondered whether he could keep it.

• Zoe brought Chen Si to see Buz, and Chen Si treated him by inserting a needle into his forehead.
• Buz suddenly recovered and thanked Chen Si, who refused payment for the treatment.
• Rose mistook Chen Si for Zoe’s boyfriend and urged them to marry, so Chen Si took Zoe’s hand and told Rose they felt the same way.
• Chen Si and Zoe walked to Lake Bourget, where Zoe explained why she cherished the distant island without visiting it.
• Zoe described how the dandelions would spread and bloom again, and Chen Si promised they could return with Philia and Yasuo the next September.
• As Zoe accepted the promise, Chen Si remembered something and silently wondered whether he could keep it.

Chen Si and Zoe reached the summit of Costalia Mountain and found the glowing flowers they had sought. As they prepared to part ways, Zoe explained why she remained a soldier, while Chen Si accepted that they had chosen different paths.

• After the search in Annecy found nothing, Rundstedt canceled the investigation into Chen Si and ordered the agents withdrawn.
• Chen Si and Zoe entered the Cana Duchy, and Chen Si used acupuncture to help them endure the cold without heavy coats.
• Chen Si and Zoe climbed Costalia Mountain and retrieved the glowing golden flowers from a dangerous cliff.
• Zoe gave the flowers to Chen Si and celebrated that his prescription would not be lost.
• Chen Si urged Zoe to leave the agency and begin a new life, but Zoe explained that she stayed to protect children and their hopes.
• Chen Si accepted Zoe's resolve as sunset fell over the mountain.

Chen Si and Zoe returned to Gniez, where Chen Si gained a mysterious lightning insight and discovered his Three Thousand Thunder Shadows had grown stronger. At the Mogwin Residence, he reunited with Yasuo and Philia, then left to attend to a patient and other urgent matters.

• Chen Si drove Zoe down the mountain, gained Driving Mastery, and nearly steered their car off a cliff when a mysterious vision overwhelmed him.
• The Snow Mountain Flower released a profound lightning art into Chen Si, boosting his Three Thousand Thunder Shadows from three hundred to five hundred lightning shadows.
• Chen Si drove for three days to Gniez while Zoe slept, and she woke at the Mogwin Residence concerned that he had driven alone.
• Chen Si found Yasuo carrying six ice cream cones while Philia held one, teased Yasuo for living off her allowance, and took two cones when Yasuo offered them.
• Chen Si asked Zoe to look after Yasuo and left to handle a patient and other matters.